Decision Maker
Make a random decision.
Input
Result
What is a Decision Maker Calculator?
A Decision Maker is a tool that helps you make random choices by picking from a set of options. It is useful for breaking ties, making quick decisions, or adding an element of chance to everyday choices.
How to make a random decision manually (the formula)
If you have n choices, assign each a number from 1 to n. Generate a random integer between 1 and n — for example, by rolling a die, flipping a coin, or using a random number table. Each choice has a 1÷n probability of being selected.
Example calculation
For a choice between three restaurants: A, B, and C. Assign A=1, B=2, C=3. Generate a random number from 1 to 3. If the number is 2, choose restaurant B. Each restaurant has a 1÷3 ≈ 33.3% chance.
Common mistakes
- Using biased selection methods — Flipping a coin is fair, but "eeny meeny miny moe" can be biased by starting point and rhythm.
- Overthinking the result — If you do not like the outcome, consider that you actually had a preference. Use the tool for low-stakes decisions only.
- Not listing all options beforehand — Adding options after seeing a result undermines the randomness. Decide all choices before running the tool.
Frequently asked questions
How does the decision maker work?
It randomly selects a "Yes" or "No" answer from your custom choices.
Is the result truly random?
Yes, it uses a random selection algorithm.
Can I add custom options?
Yes, you can enter your own list of choices.
Can I use it for important decisions?
It is for fun and guidance, not professional advice.
Is this free?
Yes, completely free.
Does it work on mobile?
Yes, works on any device.